---
tag: 0BQAA2BK3Q
kind: concept
name: Eigenvalue
msc: [15A18]
sources:
  - url: https://en.wikipedia.org/wiki/Eigenvalues_and_eigenvectors
    locator: General definition
---

## Summary

An eigenvalue of a linear map from a space to itself is a scalar $\lambda$ with a special property.
The map sends some nonzero vector to $\lambda$ times that vector.